Employee Benefit Plans - Schedule of Funded Status (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
schedule of net funded status [Line Items]
Fair value of plan assets had fair value of rabbi trusts been included	$ 4,692	$ 4,549
Funded status of plan had fair value of rabbi trust assets been included	43	326
Change in Assumptions for Defined Benefit Plans [Member] | UNITED STATES
schedule of net funded status [Line Items]
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease)	$ 109	$ 395
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	2.91%	2.65%	3.33%
Change in Assumptions for Defined Benefit Plans [Member] | Other Pension Plans [Member]
schedule of net funded status [Line Items]
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease)	$ 12	$ 39
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	2.83%	2.51%	3.23%
Pension Plan [Member]
schedule of net funded status [Line Items]
Defined Benefit Plan, Benefit Obligation, Beginning Balance	$ 4,875	$ 4,498
Service cost	4	4	$ 4
Interest cost	96	127	159
Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant	0	0
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)	5	(12)
Defined Benefit Plan, Changes in Assumptions	(107)	437
Defined Benefit Plan, Benefit Obligation, Benefits Paid	213	203
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)	(1)	0
Defined Benefit Plan, Benefit Obligation, Ending Balance	4,649	4,875	4,498
Defined Benefit Plan, Plan Assets, Amount, Beginning Balance	4,363	3,914
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)	337	568
Defined Benefit Plan, Plan Assets, Contributions by Employer	0	70
Defined Benefit Plan, Plan Assets, Benefits Paid	188	177
Defined Benefit Plan, Plan Assets, Administration Expense	30	12
Defined Benefit Plan, Plan Assets, Amount, Ending Balance	4,482	4,363	3,914
Defined Benefit Plan, Funded (Unfunded) Status of Plan	(167)	(512)
Assets for Plan Benefits, Defined Benefit Plan	257	0
Liability, Defined Benefit Plan	$ 424	512
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	2.91%
Assets held in rabbi trusts and designated for the non-qualified pension plans	$ 210	186
Pension Plan [Member] | UNITED STATES
schedule of net funded status [Line Items]
Defined Benefit Plan, Benefit Obligation, Beginning Balance	4,409	4,060
Service cost	4	4
Interest cost	87	115
Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant	0	0
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)	7	(8)
Defined Benefit Plan, Changes in Assumptions	(96)	399
Defined Benefit Plan, Benefit Obligation, Benefits Paid	187	177
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)	0	0
Defined Benefit Plan, Benefit Obligation, Ending Balance	4,210	4,409	4,060
Defined Benefit Plan, Plan Assets, Amount, Beginning Balance	4,346	3,899
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)	338	566
Defined Benefit Plan, Plan Assets, Contributions by Employer	0	70
Defined Benefit Plan, Plan Assets, Benefits Paid	187	177
Defined Benefit Plan, Plan Assets, Administration Expense	30	12
Defined Benefit Plan, Plan Assets, Amount, Ending Balance	4,467	4,346	$ 3,899
Defined Benefit Plan, Funded (Unfunded) Status of Plan	257	(63)
Assets for Plan Benefits, Defined Benefit Plan	257	0
Liability, Defined Benefit Plan	$ 0	$ 63
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	2.91%	2.65%	3.33%
Pension Plan [Member] | Other Pension Plans [Member]
schedule of net funded status [Line Items]
Defined Benefit Plan, Benefit Obligation, Beginning Balance	$ 466	$ 438
Service cost	0	0
Interest cost	9	12
Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant	0	0
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)	(2)	(4)
Defined Benefit Plan, Changes in Assumptions	(11)	38
Defined Benefit Plan, Benefit Obligation, Benefits Paid	26	26
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)	(1)	0
Defined Benefit Plan, Benefit Obligation, Ending Balance	439	466	$ 438
Defined Benefit Plan, Plan Assets, Amount, Beginning Balance	17	15
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)	(1)	2
Defined Benefit Plan, Plan Assets, Contributions by Employer	0	0
Defined Benefit Plan, Plan Assets, Benefits Paid	1	0
Defined Benefit Plan, Plan Assets, Administration Expense	0	0
Defined Benefit Plan, Plan Assets, Amount, Ending Balance	15	17	$ 15
Defined Benefit Plan, Funded (Unfunded) Status of Plan	(424)	(449)
Assets for Plan Benefits, Defined Benefit Plan	0	0
Liability, Defined Benefit Plan	$ 424	$ 449
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	2.83%	2.51%	3.23%
Other Postretirement Benefits Plan [Member]
schedule of net funded status [Line Items]
Defined Benefit Plan, Benefit Obligation, Beginning Balance	$ 220	$ 223
Service cost	0	0	$ 0
Interest cost	3	6	8
Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant	11	11
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)	(1)	2
Defined Benefit Plan, Changes in Assumptions	(5)	16
Defined Benefit Plan, Benefit Obligation, Benefits Paid	33	34
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)	0	0
Defined Benefit Plan, Benefit Obligation, Ending Balance	197	220	223
Defined Benefit Plan, Plan Assets, Amount, Beginning Balance	63	75
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)	4	6
Defined Benefit Plan, Plan Assets, Contributions by Employer	7	5
Defined Benefit Plan, Plan Assets, Benefits Paid	23	23
Defined Benefit Plan, Plan Assets, Administration Expense	0	0
Defined Benefit Plan, Plan Assets, Amount, Ending Balance	51	63	$ 75
Defined Benefit Plan, Funded (Unfunded) Status of Plan	(146)	(157)
Assets for Plan Benefits, Defined Benefit Plan	0	0
Liability, Defined Benefit Plan	$ 146	$ 157
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	2.72%	2.36%	3.15%
Cash Balance Pension Plan [Member]
schedule of net funded status [Line Items]
Defined Benefit Plan, Benefit Obligation, Beginning Balance	$ 443
Defined Benefit Plan, Benefit Obligation, Ending Balance	$ 414	$ 443